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Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method with three distinct implementations: an embedded server function, an embedded laptop/workstation function, and a specialized USB device, or "USB key". Benefits include automatically redirecting the console when the USB Device is plugged-in, and reducing the total area needed for the keyboard, mouse, and video connectors.

Country

Undisclosed

Language

English (United States)

This text was extracted from a Microsoft Word document.

At least one non-text object (such as an image or picture) has been suppressed.

This is the abbreviated version, containing approximately
53% of the total text.

Disclosed is a method with three distinct implementations:
an embedded server function, an embedded laptop/workstation function, and a
specialized USB device, or “USB key”. Benefits include automatically redirecting
the console when the USB Device is plugged-in, and reducing the total area
needed for the keyboard, mouse, and video connectors.

Background

Local console redirection in a rack environment is
traditionally done using terminal emulation software. The software monitors the
console output that is redirected by the BIOS to a physical serial port or to a
LAN session. The BIOS must be preconfigured for serial console
redirection. To access the console
locally, the client system must be connected to the local LAN or serial
port. To access via the LAN requires an
accessible Ethernet port, which typically requires extra equipment such as an
Ethernet hub. Physical access to the
hub must be provided somewhere in the rack to allow the service technician to
be present at the system while using the console. Serial console ports are typically placed in the rear of the
unit, making physical access difficult.
In the serial port implementation, the physical port is typically dedicated
to the console purpose (i.e. not reusable for other functionality).

General Description

Figure 1 shows a block diagram of the disclosed method. The
following are the three implementations for the disclosed method:

§
Embedded server
function. This enables a common laptop to connect to the system over a
standard USB cable by providing a USB Series “B” Receptacle (see Figure 2). The
system implements two new USB Device Classes, “System Console Access Point” and
“System KVM Access Point”. These USB functions provide a USB Host application
with the ability to access the system’s serial console and keyboard-video-mouse
connections via a single USB port/connection. The disclosed method includes an
application and USB driver that runs on the laptop. The application opens the
USB Device driver for the “System Console” and “System KVM” access points and
maps the system’s video to the laptop’s monitor and the laptop’s keyboard and
mouse inputs to the system.

§
Embedded laptop
function. This enables a laptop equipped with a USB Series “B” Receptacle
to function as a system console or KVM emulation (see Figure 3). In this implementation, the laptop
application uses a new USB driver that emulates the USB Device classes for
Human Interface Devices, Video, Monitor, and Console. The USB driver monitors a USB Series “B” Receptacle on the laptop
that is connected via a standard USB cable to a server’s USB Host port. The disclosed
method includes server hard...